Traveler for twister rings



Oct. 7, 1930. I s. HALL 1,777,846

TRAVELER FOR TWISTER RINGS Filed March 24, 1928 31m tow Lindsay 5. Ha,

al kwwaq Patented Oct. 7, 1930 UNITED, "STATES, PATENT. orries LINDSAY S. HALL, OF NEW BEDFORD, MASSACHUSETTS, ASSIGNOR TO THE GOODYEAR TIRE & RUBBER COMPANY, OF AKRON, OHIO, A. CORPORATION OF OHIO TRAVELER FOR TWTSTER RINGS p'plic'ation filed March 24, 1928. Serial No. 264,550.

My invention relates to yarn twistin machines, commonly known in .the texti e industry as twisters, and it has particular "relai tion to the elements operative in conjunction with the traverse rails of such machines.

' One object of the invention is to provide adevice designed to prevent lubricant from being thrown from the rings of traverse rails during the operation of the latter.

Another object of the invention is to provide an improved traveler and rail-ring adapted to be. employed in conjunction with traverse rails of twisters. A common type of twister employed in the textile industry includes a vertically movable horizontally disposed rail, known as a traverse or ring-rail, which is provided with a number of rings secured circumferentially within openings therein, through which rotatably driven spools extend. By the operat-ion of the twister, the rail movesupwardly and downwardly to guide the yarn upon the spools in evenly wound. relation. Devices known as travelers have heretofore been twister operates, the travelerslmove rapidly circumferentially abdut the ring. In order to insure minimum friction between the traveler and the ring it has been customary for the operator to smear a small amount or a thin film of lubricant about the inner cir. cumferential surface of the ring before each twisting operation commences. the lubricant was thrown from the rings upon the yarn by centrifugal for ce as the traveler moved thereabout, and a considerable loss was incurred, because soiled or oil-.

soaked'yarn is practically useless. If lubriloosely mounted upon the circumferential edges of the rings and the yarns of textile material are directed therethrough to facili tate their winding upon the spools. As the Oftentimes without in any way soiling the yarn, thereby increasing the efiiciency of the twisters and improving the quality of the yarn twisted thereby. Such an arrangement consists of a rmg having an axial width, approximately equal to," or greater than that of conventional rail rings and a traveler which is so constructed that only its intermediate portion engages the inner circumferential surface of: the ring at substantial distances between the 6Q edges thereof, I

For abe'tter understanding of the invent1on, reference may now be had to the ac- I companying drawing, forming a part of this specification, of which:

Fig. Us a fragmentary elevational view'of a twister having a device embodying myinvention incorporated therein;

Fig. 2 is afragmentary plan view of the traverse rail of the twister; and L Fig. 3 is a fragmentary cross-sectional view, on a larger. scale, taken substantially along the line III-III of Fig. 2.

Referring to Fig. 1 of the drawing, only a portion of a twister frame 10 is shown, which V isprovided with'a vertically movable traverse rail 11, and a dofiing latch 12 having a resilient connection 13 to the frame. At regularly spaced intervals, rail rings 14 are tightly secured within openings 15 formed 30 in the traverse rail 11 and each ring isproper- 1y positioned therein by means of an annular abutment 16. .It will be observed that the axial width of each ring'isgreater than the thickness of the traverse rail and that oppo- 95 site rounded edges 17 and 18 of the ring proj ect above and below the rail, respectively.

A traveler 19, preferably composed of a metallic substance, isv provided with hooked end portions 22 and 23, which are disposed about the edges 17 and 18', respectively; and

a central portion 2 1, which, in operative relation to the rail, projects. against the intermediate inner surface of the ring at points spaced from both edges 17 and 18.

Conventional rotatably driven spindles 25 comprising portions of the twister extend axially through. the rings 14: and rotatably operate spools 26 mounted-thereon. -While the spools 26 are rotated, yarns 27, which are 1m wound thereon, are directed or threaded through the upper end portions 22 of the travelers 19. In order properly to distribute the convolutions of the wound yarn upon the spools, the rail 11 moves upwardly and downwardly during the winding operation and the travelers 19 move circumferentially about the rings 14. Before the yarn has been wound upon the spools, the operator of the twister smears a. thin film of lubricant upon the inner circumferential surfaces of the rings 14. Agitation of the lubricant by the travelers causes it to tend to flow toward the lower edges of the rings. However, since only an intermediate portion 24 of each traveler engages the lubricated inner surface of the ring at points spaced from the edges 17 and 18, the lubricant is not concentrated at the lower edge 18 of the ring and, consequently, is not thrown from the ring upon the yarn. In the event the outer lower edge 18 of the'ring is heated by frictional contact of the lower portion of thetraveler therewith, the lubricant will flow until it reduces the friction and arrests the heating of the engaging portions of the elements. At the completion of a winding operation, the ring and traveler will have been properly lubricated without in anyway soiling the yarn.

From the foregoing description, it will be apparent that a construction embodying this invention is valuable in improving the quality of the yarn Wound by twisters. Also, the invention involves practically no expense in excess of that formerly required in operating such twisters.

Although I have illustrated only one form which the invention may assume and have described that form in detail, it will be apparent to those skilled in the art that it is not so limited but that various modifications may be made therein without departing from the spirit of the invention or from the scope of the appended claims.

What I claim is:

1. An elongate traveler comprising a hook at each end thereof, a. pair of angular portrons converging from the hooks toward the central portion of the traveler, and an intermediate straight portion joining the converging portions and provided with a substantially flat bearing surface, the plane of the bearing surface being coincident with the traveler only at said straight portion and at points defining the intersection of the plane with the bight of each hook.

2. A traveler comprising a'straight central bearing surface, portions extending angularly away from opposite extremities of the bearing surface and away from the plane of the bearing surface, and hooks merging into t e angularly extending portions, the angularly disposed portions being entirely outside the plane containing the bearing surface, said plane traversing an intermediate portion of each hook.

3. A traveler having a flat intermediate bearing surface normally contacting an inner cylindrical surface of a twister ring, the extremities of said bearing surface hei ug materially spaced from the lower edge of the cylindrical surface of the ring. and hooked verging toward the bearing surface. all centrifugal forces of the travel r being oncentrated upon the bearing surface at l cations materially spaced from the edges of the ring. ihe hooked end portions engaging the edges of the ring beyond the inner cylindrical surface thereof.

lu witness whereof, I have hereunto igned my name.

LINDSA Y 5. ll.\ Ill.

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